HTML cim npe Daim ntawv teev cov paub

Thaum qhov kaj ntug ntawm lub Internet ua lub developers xav txog yuav ua li cas koj yuav hloov ntawm computers ib tug ntau yam ntawm cov ntaub ntawv nyob rau hauv xws li ib txoj hais tias nws yuav heev txaus perceive tej platform. Qhov no yog hais tias yog hais tias tus network mus rau cov hloov ntaub ntawv tsim nyob rau hauv ib yam ntawm cov kev pab cuam uas technically nws yog ua tau, lawv ua tau tsis yog tag nrho computers tso tawm kom pom kom vim hais tias cov computers nyob rau hauv network yuav muaj ntau platforms thiab sib txawv poob lawm ntawm ntsia cov kev pab cuam.

Cov tshuaj nyob. Phau ntawv cov ntaub ntawv yuav muab tso tawm kom rau tag nrho cov platforms. Yog li ntawd, tag nrho cov ntaub ntawv, nws twb txiav txim siab mus rau cov hloov nws nyob rau hauv phau ntawv cov ntaub ntawv. Tab sis li cas txog cov dluab thiab cov ntawv nyeem formatting?

Yuav kom qhov no kawg, nws tsim ib tug tshwj xeeb meta-lus, hu ua Standard Generalized Markup Language, los yog abbreviated SGML - Standard generalized markup lus. Lub ideology ntawm no lus yog hais tias lub web yog pauv mus rau hauv cov ntawv nyeem, cim nrog tshwj xeeb cim npe - cim npe uas muab pab neeg no ib tug tshwj xeeb kev pab cuam lub browser mus tso saib cov ntawv nyeem raws nraim raws li tau npaj.

Ib tug ncaj xeeb leej xeeb ntxwv ntawm SGML yog tus hypertext markup lus HTML (Hypertext Markup Languale), tau txais lub ideology ntawm nws cov niam txiv. HTML cim npe, ib daim ntawv teev cov neeg uas yog lub npe hu mus rau txhua txhua webmaster, qhia rau tus browser tsis tau tsuas yog mus rau txoj kev nyob rau hauv uas koj xav mus tso saib ntawv nyeem, tab sis kuj nyob rau hauv tej qhov chaw mus tau ntxig ib tug duab uas yog kis nyias, yuav ua li cas rau decorate lub rooj, yuav ua li cas mus rau qhov chaw cov ntaub ntawv rau lub computer screen, thiab tshaj.

Txawm li cas los, nyob rau hauv cov zaub ntawm cov ntaub ntawv yuav tsis tau tsuas yog cov HTML tag daim ntawv no heev uas nws kim heev, tab sis lwm yam technologies. Yog li ntawd raws li mus rau lub nyob tsis yog li ntawd ntev dhau los, cov ideology ntawm kev sib cais hypertext markup thiab cov ntawv nyeem formatting tag nrho formatting pib ua ib daim ntaub ntawv, hu ua kev lam los xij (los yog lub rooj) yeej - lam Style ntawv (CSS), thiab tag nrho cov HTML nplooj ntawv txuas mus rau lub CSS cov ntaub ntawv, uas zoo heev simplifies cov hauj lwm ntawm tsis tsuas mus rau format ntawv nyeem tab sis kuj cov creation ntawm ntau yam ntsiab ntawm ib lub web page uas tsim tau.

Yog li ntawd ib daim ntawv teev HTML cim npe, uas yog tseem tsis txaus los tsim web pages dynamic ntsiab, yuav tsis tau mus thov kom tsim kev zoo nkauj dynamic khawm uas hloov cov duab tom qab rau mouseover. Yog li ntawd tseem yuav ua li cas yuav ua rau ib tug khawm rau ntawm qhov chaw, nrog ib tug zoo nkauj thiab dynamic? Ntawm no, ib yam nkaus thiab, los mus rau cov kev pab ntawm CSS technology. HTML cim npe daim ntawv teev yog txoj kev loj hlob ntawm cov lus yuav raug hloov, qhia seb browser qhov twg nws yog nyob rau hauv lub khawm, thiab CSS ntsiab qhia ib tug tom qab (los yog daim ntawv lo) yuav raug muab tso rau lub khawm nyob rau hauv ntau txoj haujlwm ntawm tus nas cursor.

Ntawm cov hoob kawm, rau lub hom phiaj no, koj yuav tau siv lwm yam kev yees xws li JavaScript programming lus, uas yog heev feem ntau ua, tab sis nyob rau hauv cov ntaub ntawv no, cov nplooj ntawv tej zaum yuav tsis tso saib kom nyob rau hauv ib co browsers, nws yog ib qho tsis muaj hmoo yuav tau txais ntawm lub thiaj li hu ua "browser tsov ua rog". Lub JavaScript lus txij li thaum nws tsim sai sai ua li nrov ntawm developers hais tias lub ruaj tsim thiab txhawb browsers pib hloov nyob rau hauv nws. Yog li ntawd, dab tsi yog sau nyob rau hauv JavaScript rau Internet Explorer tsis tso saib kom nyob rau hauv Netscape browser thiab vice versa.

Yog li HTML cim npe tom qab, ntawm chav kawm, muaj peev xwm tso saib, tab sis nyob rau hauv niaj hnub technologies ntawm kev sib cais ntawm imposition thiab tua ntawm no ua hauj lwm nplooj ntawv Web site kav CSS. HTML yog tsis tu ncua lawm. Lub developers tau tam sim no tsim rau lub thib tsib version ntawm cov lus, uas yog kev txhawb los ntawm feem ntau niaj hnub brauzerov.V tshiab version ntawm cov lus ntau heev, uas muab developers zoo kawg uas rau creativity.

Cov kev txhim kho no kuj CSS technology. Nyob rau hauv lub thib peb version muaj kuj yog ib tug ntau ntawm tej yam tshiab, xws li tus ncej nrog sib npaug ntawm cov ces kaum. Nyob rau hauv ua ntej lawm versions, mus rau "ua" xws li ib tug lub moj khaum, nws yog tsim nyog los kom ib tug tabular qauv ntawm ib tug neeg nraaj hais xws ntas.

Qhov no yog - lub cuab yeej ntawm niaj hnub no. Thiab yog dab tsi yuav tshwm sim tag kis?